European Union
Tax and legal advisors for doing business in the European Union
Economists and lawyers since 1989. We help companies, SMEs and the self-employed that sell, buy, hire or set up in other European Union countries, with tax, company law and employment matters coordinated.
Why Ruiz & Asociados
Your trusted advisors
for growing in Europe
For more than three decades we have supported SMEs, self-employed professionals and entrepreneurs. From Seville we serve companies operating in the single market: intra-EU VAT, online sales to consumers in other countries, subsidiaries and branches, contracts and posted workers.
Economists and lawyers work together, so your tax, employment and legal matters are coordinated from one firm.
- Intra-EU VAT, ROI, VIES and One-Stop Shop (OSS)
- Subsidiaries, branches and contracts with European companies
- Posted workers and A1 certificates
- Digital management with Holded: your numbers always up to date
Our services
Tax, employment and legal
under one roof
Economists and lawyers working together so you don’t have to coordinate several professionals: your advisors for the EU with everything in one firm.
Tax advice
Taxes, tax planning and representation before the Spanish Tax Agency, so you pay what’s fair and always meet deadlines.
Employment advice
Payroll, contracts, Social Security and HR management with no errors or penalties.
Accounting
Up-to-date bookkeeping under the Spanish General Accounting Plan, annual accounts and statutory books.
Company formation
We help you choose the right legal structure and handle all the paperwork.
Commercial law
Contracts, shareholder agreements, corporate transactions and disputes between partners.
Insolvency proceedings
We guide you through insolvency to protect your company and your assets.
Audit
Statutory audits and independent reviews for companies and organisations.
Inheritance and succession
Inheritances with assets or heirs in other EU countries, applying the European Succession Regulation and Spanish rules.
High net worth
Long-term planning and protection of family and business wealth.
Tax, legal and employment in the EU
Selling and growing in Europe:
what you need to know
The single market lets you sell, buy and set up in any European Union country, but each transaction has its own VAT rules, reporting obligations and, if there are employees, employment rules. These are the points we review most with our clients.
Intra-EU VAT and the One-Stop Shop
To sell to companies in other countries without VAT you must be in the ROI, validate your customer’s VAT number in VIES and file form 349. For sales to consumers in other countries above €10,000 a year, the VAT of the customer’s country applies and is declared through the One-Stop Shop (OSS).
Subsidiary, branch or permanent establishment
Freedom of establishment lets you open a subsidiary or a branch in any Member State. The structure you choose changes liability, where tax is paid and how profits are distributed, which can arrive free of withholding under the Parent-Subsidiary Directive if its requirements are met.
Contracts, data and reporting obligations
We review your contracts with European customers and suppliers (applicable law, jurisdiction and terms of sale) and data processing under the GDPR, as well as the DAC directive obligations, such as DAC6 for cross-border arrangements or DAC8 for crypto-assets.
Posted workers
If you send employees to another EU country, you need an A1 certificate so they keep contributing in Spain and must notify the posting in the host country, respecting its minimum employment conditions. We organise the posting and its taxation.
EU update: the VAT in the Digital Age (ViDA) package introduces single VAT registration from July 2028 and mandatory e-invoicing for intra-EU transactions from July 2030. More information on the European Commission Taxation and Customs Union website and on the Spanish Tax Agency website. Figures based on the rules in force in 2026; before you decide, we review your specific case.
European Union countries
We work with companies
operating across Europe
We support Spanish companies with customers, suppliers or subsidiaries in other Member States, and European companies setting up in Spain.
European Union
Outside the EU
Who we work with
Advice tailored
to your business
We work with SMEs, self-employed professionals and entrepreneurs in every sector, adapting each strategy to their situation and goals. Advisors for the EU for every type of business.
SMEs and companies
Taxes, accounting and payroll up to date, with reliable figures for decision-making.
Self-employed and professionals
Forget about quarterly returns and find out when it pays to incorporate.
Entrepreneurs
We help you choose your legal structure, set up your company and start out with clear numbers from day one.
Sectors with their own rules
Artists, athletes, content creators and e-commerce.
How we work
A clear process
from day one
No surprises: you know what we do, when we do it and what it costs. This is how our advisors for the EU work, with an orderly method from the first meeting to each year-end.
Initial meeting
We sit down with you to understand your business, your goals and how your company works today.
Full review
We review taxes, accounting, payroll, contracts and corporate structure to spot risks and errors.
Optimisation plan
We look for savings and better decisions: deductions, legal structure, partner remuneration or investments.
Clear proposal
We present a fixed quote with everything the service includes, with no small print.
Getting started
We handle the switch from your previous advisor, organise your documentation and connect your digital tools.
Ongoing support
Reminders before every deadline, a review before year-end and guidance on growth and wealth decisions.
Digital advisory
We are a Holded Gold Partner: your advisors, connected in real time
We work with digital tools so your invoicing, accounting and taxes are connected with your advisor, with no paperwork or waiting. As a Holded Gold Partner, we help you implement it and get the most out of it.
- Invoicing, accounting and sales on a single platform
- Your figures up to date, on your computer or phone
- Digital invoices and receipts, no paperwork
Reviews
What our clients
say about us
Frequently asked questions
Answers
before you
get started
Can’t find what you’re looking for? Call us and we’ll explain, with no commitment. You can also check the official information on the Spanish Tax Agency website.
Yes. We handle the tax, accounting and legal matters of Spanish companies that sell, buy or provide services in the rest of the European Union, and of European companies operating in Spain.
Yes. To invoice companies in other Member States without VAT you must be in the Register of Intra-Community Operators, check your customer’s VAT number in VIES and report the transactions on form 349. We register you and review it every quarter.
It is the system for declaring in Spain the VAT on your sales to consumers in other EU countries once you exceed €10,000 a year in total. You charge the VAT of the customer’s country and pay it through a single quarterly return, without registering in each country.
Yes, with an A1 certificate so they keep contributing to Spanish social security, and by notifying the posting in the host country, which requires respecting its minimum employment conditions. We help with the formalities, the contract and their taxes.
You have a dedicated advisor you can call or write to, we remind you before every deadline and share your numbers in real time with Holded. That way your business stays up to date even if you work across Europe, with no paperwork or waiting.
News
Latest tax
and employment news
Regulatory changes, deadlines and practical tips from your advisors for the EU to keep your business up to date.
